Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Claire Siverson, LCSW

Individual provider Clinical Social Worker · NPI 1598974255

MS. Claire Siverson, LCSW is a Clinical Social Worker in Vallejo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

236 Georgia St Ste 200 B
Vallejo, CA 94590-5962
Phone: (707) 558-6730
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence LCS18079 (CA)
Clinical Social Worker Taxonomy 1041C0700X · Licence 18079 (CA)

Record details

NPI number1598974255
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMay 21, 2007
Last updated in NPPESJuly 13, 2023
Certification dateJuly 13, 2023

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